/ Check-in [1d4fe559]
Login
Home Timeline Branches Tags Tickets Wiki More...

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment::-) (CVS 100)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1:1d4fe5599ed0bae18dba5842ab7ea1d34b8ec3ad
User & Date: drh 2000-06-16 20:51:26
Context
2000-06-17
13:12
:-) (CVS 101) check-in: 6ed35a1d user: drh tags: trunk
2000-06-16
20:51
:-) (CVS 100) check-in: 1d4fe559 user: drh tags: trunk
2000-06-15
16:49
:-) (CVS 99) check-in: ac38f460 user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/expr.c. 

19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
...
500
501
502
503
504
505
506






507
508
509
510
511
512
513

** Author contact information:
**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** This file contains C code routines used for processing expressions
**
** $Id: expr.c,v 1.15 2000/06/11 23:50:13 drh Exp $
*/
#include "sqliteInt.h"

/*
** Walk an expression tree.  Return 1 if the expression is constant
** and 0 if it involves variables.
*/
................................................................................
    case TK_STAR:
    case TK_MINUS:
    case TK_SLASH: {
      sqliteExprCode(pParse, pExpr->pLeft);
      sqliteExprCode(pParse, pExpr->pRight);
      sqliteVdbeAddOp(v, op, 0, 0, 0, 0);
      break;






    }
    case TK_LT:
    case TK_LE:
    case TK_GT:
    case TK_GE:
    case TK_NE:
    case TK_EQ: 








|







 







>
>
>
>
>
>








19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
...
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519

** Author contact information:
**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** This file contains C code routines used for processing expressions
**
** $Id: expr.c,v 1.16 2000/06/16 20:51:26 drh Exp $
*/
#include "sqliteInt.h"

/*
** Walk an expression tree.  Return 1 if the expression is constant
** and 0 if it involves variables.
*/
................................................................................
    case TK_STAR:
    case TK_MINUS:
    case TK_SLASH: {
      sqliteExprCode(pParse, pExpr->pLeft);
      sqliteExprCode(pParse, pExpr->pRight);
      sqliteVdbeAddOp(v, op, 0, 0, 0, 0);
      break;
    }
    case TK_CONCAT: {
      sqliteExprCode(pParse, pExpr->pLeft);
      sqliteExprCode(pParse, pExpr->pRight);
      sqliteVdbeAddOp(v, OP_Concat, 2, 0, 0, 0);
      break;
    }
    case TK_LT:
    case TK_LE:
    case TK_GT:
    case TK_GE:
    case TK_NE:
    case TK_EQ:

Changes to src/parse.y. 

22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
...
293
294
295
296
297
298
299

300
301
302
303
304
305
306
...
331
332
333
334
335
336
337

338
339
340
341
342
343
344

**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.20 2000/06/09 14:14:33 drh Exp $
*/
%token_prefix TK_
%token_type {Token}
%extra_argument {Parse *pParse}
%syntax_error {
  sqliteSetString(&pParse->zErrMsg,"syntax error",0);
  pParse->sErrToken = TOKEN;
................................................................................
%left OR.
%left AND.
%right NOT.
%left EQ NE ISNULL NOTNULL IS LIKE GLOB BETWEEN IN.
%left GT GE LT LE.
%left PLUS MINUS.
%left STAR SLASH.

%right UMINUS.

%type expr {Expr*}
%destructor expr {sqliteExprDelete($$);}

expr(A) ::= LP expr(X) RP.   {A = X;}
expr(A) ::= ID(X).           {A = sqliteExpr(TK_ID, 0, 0, &X);}
................................................................................
  A = sqliteExpr(TK_GLOB, X, Y, 0);
  A = sqliteExpr(TK_NOT, A, 0, 0);
}
expr(A) ::= expr(X) PLUS expr(Y).  {A = sqliteExpr(TK_PLUS, X, Y, 0);}
expr(A) ::= expr(X) MINUS expr(Y). {A = sqliteExpr(TK_MINUS, X, Y, 0);}
expr(A) ::= expr(X) STAR expr(Y).  {A = sqliteExpr(TK_STAR, X, Y, 0);}
expr(A) ::= expr(X) SLASH expr(Y). {A = sqliteExpr(TK_SLASH, X, Y, 0);}

expr(A) ::= expr(X) ISNULL.        {A = sqliteExpr(TK_ISNULL, X, 0, 0);}
expr(A) ::= expr(X) NOTNULL.       {A = sqliteExpr(TK_NOTNULL, X, 0, 0);}
expr(A) ::= NOT expr(X).           {A = sqliteExpr(TK_NOT, X, 0, 0);}
expr(A) ::= MINUS expr(X). [UMINUS]   {A = sqliteExpr(TK_UMINUS, X, 0, 0);}
expr(A) ::= PLUS expr(X). [UMINUS]    {A = X;}
expr(A) ::= LP select(X) RP. {
  A = sqliteExpr(TK_SELECT, 0, 0, 0);








|







 







>







 







>








22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
...
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
...
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346

**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.21 2000/06/16 20:51:26 drh Exp $
*/
%token_prefix TK_
%token_type {Token}
%extra_argument {Parse *pParse}
%syntax_error {
  sqliteSetString(&pParse->zErrMsg,"syntax error",0);
  pParse->sErrToken = TOKEN;
................................................................................
%left OR.
%left AND.
%right NOT.
%left EQ NE ISNULL NOTNULL IS LIKE GLOB BETWEEN IN.
%left GT GE LT LE.
%left PLUS MINUS.
%left STAR SLASH.
%left CONCAT.
%right UMINUS.

%type expr {Expr*}
%destructor expr {sqliteExprDelete($$);}

expr(A) ::= LP expr(X) RP.   {A = X;}
expr(A) ::= ID(X).           {A = sqliteExpr(TK_ID, 0, 0, &X);}
................................................................................
  A = sqliteExpr(TK_GLOB, X, Y, 0);
  A = sqliteExpr(TK_NOT, A, 0, 0);
}
expr(A) ::= expr(X) PLUS expr(Y).  {A = sqliteExpr(TK_PLUS, X, Y, 0);}
expr(A) ::= expr(X) MINUS expr(Y). {A = sqliteExpr(TK_MINUS, X, Y, 0);}
expr(A) ::= expr(X) STAR expr(Y).  {A = sqliteExpr(TK_STAR, X, Y, 0);}
expr(A) ::= expr(X) SLASH expr(Y). {A = sqliteExpr(TK_SLASH, X, Y, 0);}
expr(A) ::= expr(X) CONCAT expr(Y). {A = sqliteExpr(TK_CONCAT, X, Y, 0);}
expr(A) ::= expr(X) ISNULL.        {A = sqliteExpr(TK_ISNULL, X, 0, 0);}
expr(A) ::= expr(X) NOTNULL.       {A = sqliteExpr(TK_NOTNULL, X, 0, 0);}
expr(A) ::= NOT expr(X).           {A = sqliteExpr(TK_NOT, X, 0, 0);}
expr(A) ::= MINUS expr(X). [UMINUS]   {A = sqliteExpr(TK_UMINUS, X, 0, 0);}
expr(A) ::= PLUS expr(X). [UMINUS]    {A = X;}
expr(A) ::= LP select(X) RP. {
  A = sqliteExpr(TK_SELECT, 0, 0, 0);

Changes to src/tokenize.c. 

23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
...
212
213
214
215
216
217
218









219
220
221
222
223
224
225

*************************************************************************
** An tokenizer for SQL
**
** This file contains C code that splits an SQL input string up into
** individual tokens and sends those tokens one-by-one over to the
** parser for analysis.
**
** $Id: tokenize.c,v 1.11 2000/06/08 16:26:24 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#include <stdlib.h>

/*
** All the keywords of the SQL language are stored as in a hash
................................................................................
      if( z[1]!='=' ){
        *tokenType = TK_ILLEGAL;
        return 2;
      }else{
        *tokenType = TK_NE;
        return 2;
      }









    }
    case ',': {
      *tokenType = TK_COMMA;
      return 1;
    }
    case '\'': case '"': {
      int delim = z[0];








|







 







>
>
>
>
>
>
>
>
>








23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
...
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234

*************************************************************************
** An tokenizer for SQL
**
** This file contains C code that splits an SQL input string up into
** individual tokens and sends those tokens one-by-one over to the
** parser for analysis.
**
** $Id: tokenize.c,v 1.12 2000/06/16 20:51:26 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#include <stdlib.h>

/*
** All the keywords of the SQL language are stored as in a hash
................................................................................
      if( z[1]!='=' ){
        *tokenType = TK_ILLEGAL;
        return 2;
      }else{
        *tokenType = TK_NE;
        return 2;
      }
    }
    case '|': {
      if( z[1]!='|' ){
        *tokenType = TK_ILLEGAL;
        return 1;
      }else{
        *tokenType = TK_CONCAT;
        return 2;
      }
    }
    case ',': {
      *tokenType = TK_COMMA;
      return 1;
    }
    case '\'': case '"': {
      int delim = z[0];

Changes to test/expr.test. 

19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
...
125
126
127
128
129
130
131




132
133
134
135
136
137
138

#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing expressions.
#
# $Id: expr.test,v 1.7 2000/06/08 16:26:25 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Create a table to work with.
#
execsql {CREATE TABLE test1(i1 int, i2 int, r1 real, r2 real, t1 text, t2 text)}
................................................................................
test_expr expr-3.22 {t1='abc', t2='xyz'} {t1!=t2} 1
test_expr expr-3.23 {t1='xyz', t2='abc'} {t1!=t2} 1
test_expr expr-3.24 {t1='abc', t2='abc'} {t1!=t2} 0
test_expr expr-3.25 {t1=NULL, t2='hi'} {t1 isnull} 1
test_expr expr-3.26 {t1=NULL, t2='hi'} {t2 isnull} 0
test_expr expr-3.27 {t1=NULL, t2='hi'} {t1 notnull} 0
test_expr expr-3.28 {t1=NULL, t2='hi'} {t2 notnull} 1





test_expr expr-4.1 {t1='abc', t2='Abc'} {t1<t2} 0
test_expr expr-4.2 {t1='abc', t2='Abc'} {t1>t2} 1
test_expr expr-4.3 {t1='abc', t2='Bbc'} {t1<t2} 1
test_expr expr-4.4 {t1='abc', t2='Bbc'} {t1>t2} 0

test_expr expr-5.1 {t1='abc', t2='xyz'} {t1 LIKE t2} 0








|







 







>
>
>
>








19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
...
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142

#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing expressions.
#
# $Id: expr.test,v 1.8 2000/06/16 20:51:26 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Create a table to work with.
#
execsql {CREATE TABLE test1(i1 int, i2 int, r1 real, r2 real, t1 text, t2 text)}
................................................................................
test_expr expr-3.22 {t1='abc', t2='xyz'} {t1!=t2} 1
test_expr expr-3.23 {t1='xyz', t2='abc'} {t1!=t2} 1
test_expr expr-3.24 {t1='abc', t2='abc'} {t1!=t2} 0
test_expr expr-3.25 {t1=NULL, t2='hi'} {t1 isnull} 1
test_expr expr-3.26 {t1=NULL, t2='hi'} {t2 isnull} 0
test_expr expr-3.27 {t1=NULL, t2='hi'} {t1 notnull} 0
test_expr expr-3.28 {t1=NULL, t2='hi'} {t2 notnull} 1
test_expr expr-3.29 {t1='xyz', t2='abc'} {t1||t2} {xyzabc}
test_expr expr-3.30 {t1=NULL, t2='abc'} {t1||t2} {abc}
test_expr expr-3.31 {t1='xyz', t2=NULL} {t1||t2} {xyz}
test_expr expr-3.32 {t1='xyz', t2='abc'} {t1||' hi '||t2} {{xyz hi abc}}

test_expr expr-4.1 {t1='abc', t2='Abc'} {t1<t2} 0
test_expr expr-4.2 {t1='abc', t2='Abc'} {t1>t2} 1
test_expr expr-4.3 {t1='abc', t2='Bbc'} {t1<t2} 1
test_expr expr-4.4 {t1='abc', t2='Bbc'} {t1>t2} 0

test_expr expr-5.1 {t1='abc', t2='xyz'} {t1 LIKE t2} 0

Changes to test/main.test. 

19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
..
74
75
76
77
78
79
80







81
82
83
84
85
86
87

#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is exercising the code in main.c.
#
# $Id: main.test,v 1.2 2000/06/08 16:26:25 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Tests of the sqlite_complete() function.
#
do_test main-1.1 {
................................................................................
do_test main-3.2 {
  catch {db close}
  file delete -force testdb
  sqlite db testdb
  set v [catch {execsql {SELECT * from T1 where ~x}} msg]
  lappend v $msg
} {1 {unrecognized token: "~"}}








do_test main-3.3 {
  catch {db close}
  file delete -force testdb
  sqlite db testdb
  execsql {
    create table T1(X REAL);








|







 







>
>
>
>
>
>
>








19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
..
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94

#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is exercising the code in main.c.
#
# $Id: main.test,v 1.3 2000/06/16 20:51:26 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Tests of the sqlite_complete() function.
#
do_test main-1.1 {
................................................................................
do_test main-3.2 {
  catch {db close}
  file delete -force testdb
  sqlite db testdb
  set v [catch {execsql {SELECT * from T1 where ~x}} msg]
  lappend v $msg
} {1 {unrecognized token: "~"}}
do_test main-3.3 {
  catch {db close}
  file delete -force testdb
  sqlite db testdb
  set v [catch {execsql {SELECT a|b from T1 where x}} msg]
  lappend v $msg
} {1 {unrecognized token: "|"}}

do_test main-3.3 {
  catch {db close}
  file delete -force testdb
  sqlite db testdb
  execsql {
    create table T1(X REAL);

Changes to www/changes.tcl. 

12
13
14
15
16
17
18




19
20
21
22
23
24
25

}


proc chng {date desc} {
  puts "<DT><B>$date</B></DT>"
  puts "<DD><P><UL>$desc</UL></P></DD>"
}





chng {2000 June 12} {
<li>Added the fcnt() function to the SQL interpreter.  The fcnt() function
    returns the number of database "Fetch" operations that have occurred.
    This function is designed for use in test scripts to verify that
    queries are efficient and appropriately optimized.  Fcnt() has no other
    useful purpose, as far as I know.</li>








>
>
>
>








12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

}


proc chng {date desc} {
  puts "<DT><B>$date</B></DT>"
  puts "<DD><P><UL>$desc</UL></P></DD>"
}

chng {2000 June 16} {
<li>Added the concatenate string operator (||)</li>
}

chng {2000 June 12} {
<li>Added the fcnt() function to the SQL interpreter.  The fcnt() function
    returns the number of database "Fetch" operations that have occurred.
    This function is designed for use in test scripts to verify that
    queries are efficient and appropriately optimized.  Fcnt() has no other
    useful purpose, as far as I know.</li>

This page was generated in about 0.043s by Fossil 2.8 [9c7fdea89b] 2019-01-20 23:57:07